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Finding the Fourth Proportional to 59.98, 82.74 and 39.29

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Solution

The fourth proportional to 59.98, 82.74 and 39.29 is: 54.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.98 : 82.74 = 39.29 : x
  2. Step 2: Convert to fraction form
    59.98/82.74 = 39.29/x
  3. Step 3: Cross multiply
    59.98x = 82.74 × 39.29
  4. Step 4: Simplify right side
    59.98x = 3,251.21
  5. Step 5: Solve for x
    x = 3,251.21/59.98
  6. Step 6: Final answer
    x = 54.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.